Ferraz Shawmut Tri-OniC ; Class RK5 Time-Delay Blade Fuse; 400 Amp, 250VAC/DC

This Ferraz Shawmut Tri-OniC TR Series Class RK5 time-delay fuse is engineered for high performance and reliability in industrial settings. Rated at 400 Amps for both AC and DC circuits (250 VAC/250 VDC), it provides effective protection for electrical circuits by allowing brief overcurrent conditions without triggering a trip. The fuse features a fiberglass body for durability and stability, even in challenging environments. It also includes a high-grade silica filler that ensures efficient arc quenching and high current limitation. Designed for use in motor circuits, transformers, and other critical equipment, it offers a time-delay function that prevents unnecessary interruptions during motor startups and transformer inrushes.

Product Specification :

• Rated 400 Amps, 250 VAC/250 VDC for versatile use in AC/DC circuits
• Interrupt rating of 200 Kilo-Amps AC and 20 Kilo-Amps DC for safe fault clearing
• Fiberglass body construction for dimensional stability in harsh industrial environments
• Time-delay feature for motor start-ups and transformer inrush currents without nuisance tripping
• UL listed, CE/CSA certified, with optional SmartSpot indicator for easy identification and rejection-style design to prevent replacement errors